Why is the term “minor planet” being replaced by “small Solar System bodies”?
Under the new definition of “planet”, nearly all objects currently called “minor planets” are not planets. For IAU purposes, a definition and name is needed that clearly distinguishes between objects that are officially recognized as planets and those that are not. Q: For any newly discovered object, how will a decision be reached on whether or not to officially call it a “planet.” A: The decision on whether or not an object is officially a “planet” will be made by a review committee within the IAU. The review process will be an evaluation, based on the best available data, of whether or not the physical properties of the object satisfy the definition of “planet.” It is likely that for many objects, a period of time of several years may be required in order for sufficient data to be gathered. Q: Are there additional “planet” candidates currently being considered? A: Yes. Q: Does this mean there will be more than 12 planets in our Solar System? A: Almost certainly yes. Q: When will addi
